Octet

Octet / pKa Table

Phenol (ArOH)

The pKa of Phenol (ArOH) is 10. Resonance into ring stabilizes anion. A lower pKa means a stronger acid and a more stable conjugate base.

pKa Table details

Compound

Phenol (ArOH)

Pka

10

Conjugate Base

ArO⁻

Notes

Resonance into ring stabilizes anion

This is one row of the pKa · protecting groups sheet - print all 31 pKa values on one page.

pKa Table

Related Content

Acids ranked by strength, with the conjugate base each one leaves behind.

HI

The pKa of HI is -10. Strongest common acid. A lower pKa means a stronger acid and a more stable conjugate base.

HBr

The pKa of HBr is -9. A lower pKa means a stronger acid and a more stable conjugate base.

HCl

The pKa of HCl is -7. A lower pKa means a stronger acid and a more stable conjugate base.

H₂SO₄

The pKa of H₂SO₄ is -3. First proton. A lower pKa means a stronger acid and a more stable conjugate base.

HNO₃

The pKa of HNO₃ is -1.4. A lower pKa means a stronger acid and a more stable conjugate base.

H₃O⁺

The pKa of H₃O⁺ is -1.7. Hydronium ion. A lower pKa means a stronger acid and a more stable conjugate base.

Study guides

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SN1 vs SN2 decision guideE1 vs E2 elimination guideIdentify functional groupsAll guides